| name | Car seat back 60% | |
| Product specification | 661*622*37 | |
| Production technology | Blanking (2D laser cutting)/Drawing (soft die)/inner hole and trimming (3D laser cutting)/flanging (soft die) | |
| Material information | SPCC | T=0.5mm |
| Elongation after breakingδ/5 | ≥40% | |
| Tensile strengthσb | ≥337 MPa | |
| Yield strengthσs | 198 MPa | |

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